<template>
	<view>
		<!-- <view class="pubuBox" v-if="mpGoodsShow=='imgFalls'"> -->
		<!-- <view class="pubuBox">
			<view class="pubuItem">
				<view class="ImgLeftTextRight" >
					<view class="ImgLeftTextRight_item" v-for="(item,index) in goodsList" @click="toGoodsDetail(item)">
						<view class="ImgLeftTextRight_left">
							<image src="https://img.zcool.cn/community/012bdb5a06fc93a801204a0e7140ac.jpg@1280w_1l_2o_100sh.jpg" mode="aspectFill" style="width: 200rpx;height: 200rpx;"></image>
						</view>
						<view class="ImgLeftTextRight_right">
							<view class="ImgLeftTextRight_name">{{item.name}}</view>
							<view class="ImgLeftTextRight_sale">
								<view>
									库存{{item.stock}}
								</view>
							</view>
							<view class="ImgLeftTextRight_price">
								<view class="ImgLeftTextRight_price1">{{item.sellScore}} 积分</view>
							</view>
							<image @click.stop="addShopCart(item)" class="ImgLeftTextRight_cart"
								src="https://s3.bmp.ovh/imgs/2022/03/a523827e3fd00c2e.png" mode="aspectFill" style="width: 40rpx;height: 40rpx;">
								立即购买
							</image>
						</view>
					</view>
				</view>
			</view>
		</view> -->
		<view class="u-wrap">
		<view class="cu-bar search bg-white" style="">
			<view class="search-form round">
				<text class="cuIcon-search"></text>
				<!-- @focus="InputFocus" @blur="InputBlur" -->
				<input  :adjust-position="false" type="text" placeholder="搜索商品" v-model="searchText" confirm-type="search"></input>
			</view>
			<view class="action">
				<button class="cu-btn bg-red shadow-blur round" @tap="searchProduct">搜索</button>
			</view>
		 </view>
				<view class="u-menu-wrap">
					<scroll-view scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop"
					 :scroll-into-view="itemId">
						<view v-for="(item,index) in tabbars" :key="index" class="u-tab-item" :class="[current == index ? 'u-tab-item-active' : '']"
						 @tap.stop="swichMenu(index)">
						    <view class="">
						    	<image class="item-menu-image1" :src="item.category_img" mode=""></image>
						    </view>
							<view class="mt">
								<text class="u-line-1">{{item.category_name}}</text>
							</view>
						</view>
					</scroll-view>
					<scroll-view :scroll-top="scrollRightTop" scroll-y scroll-with-animation class="right-box" @scroll="rightScroll">
						<view class="page-view">
							<view class="class-item" :id="'item' + index" v-for="(item , index) in tabbars" :key="index">
								<view class="text-black text-bold text-xl">
									<text>{{item.category_name}}</text>
								</view>
								<view class="item-container">
									<view class="thumb-box" v-for="(item1, index1) in item.products" :key="index1">
									    <view class="">
									    	<image class="item-menu-image" :src="item1.image" mode=""></image>
									    </view>
										<view class="box-info">
											<view class="text-black text-bold " style="width: 60%;word-wrap: break-word;">{{item1.name}}</view>
											<view class="info-right flex align-center">
												<view class="">
													<view class="cu-btn bg-orange round mt sm" >
														库存:{{item1.stock}}
													</view>
													<view class="price-info mt">
														<text class="text-price text-red text-xxl ">{{item1.sellScore}} 积分</text>
													</view>
												</view>
												<view class="cu-btn bg-red round sm margin-left-sm"  @click="toGoodsDetail(item1)">
													选规格
												</view>
											</view>
										</view>
									</view>
								</view>
							</view>
						</view>
					</scroll-view>
				</view>
			</view>
	</view>
</template>

<script>
	import common from 'common/common.js';
	export default {
		// const app = getApp()
		props: {
			mpGoodsShow: {
				type: String,
				default: 'xingsheng'
			},
			// goodsList: {
			// 	type: Array,
			// 	default () {
			// 		return []
			// 	}
			// }
		},
		data() {
			return {
				tabbars:[],
				scrollTop: 0, //tab标题的滚动条位置
				oldScrollTop: 0,
				current: 0, // 预设当前项的值
				menuHeight: 0, // 左边菜单的高度
				menuItemHeight: 0, // 左边菜单item的高度
				itemId: '', // 栏目右边scroll-view用于滚动的id
				tabbar: [],
				menuItemPos: [],
				arr: [],
				scrollRightTop: 0, // 右边栏目scroll-view的滚动条高度
				timer: null, // 定时器
				// 是否打开SKU弹窗
				skuKey:false,
				// SKU弹窗模式
				skuMode:3,
				// 后端返回的商品信息
				goodsInfo:null,
				params:{},
				searchText:'',// 搜索商品
				tabbarList:[],
				myCode:[],
				score:"",
				// goodsList:[
				// 	{
				// 		name:"腾讯月卡",
				// 	},
				// 	{
				// 		name:"腾讯年卡"
				// 	}
					
				// ],
			}
		},
		onLoad() {
			this.getCoupons();
		},
		onReady() {
			this.getMenuItemTop()
		},
		methods: {
			// 数量选择
			// handleNumChange() {
			//     // 处理数量变化的逻辑，可以在这里做一些额外的操作
			//     console.log('数量变化：', this.quantity);
			// },
			// 获取所有卡劵
			getCoupons(){
				var that = this;
				uni.request({
					url: common.base_url+'/ems/product/loadAll',
					data:{
					},
					header:{
					},
					method: 'GET',
					success: res => {
						console.log(res)
						if(res.data.code == 200){
							that.goodsList = res.data.data;
							that.tabbar = res.data.data;
							that.tabbars =[
								{
									category_name: "卡劵",
									category_img: "https://bpic.588ku.com/element_origin_min_pic/19/09/06/34213fb269925382a6a30c324f240cd7.jpg",
									products: res.data.data
								}
							]
							that.tabbarList = res.data.data;
						} else {
							uni.showToast({
								title: res.msg,
								duration: 2000,
								icon:"error"
							})
						}
					
					},
					fail: function(e) {
						uni.showToast({
							title:"唉哟，程序错误了["+JSON.stringify(e)+"]",
							icon:"loading"
						})
					},
				});
				
				
			},
			__e(){},
			// 跳转商品详情
			toGoodsDetail(product) {
				// let seqId = e
				// console.log(seqId)
				// this.$emit('toGoodsDetail', )
				uni.navigateTo({
					url:'/pages/welfareMall/settlement?selectShop='+ encodeURIComponent(JSON.stringify(product)),
				})
			},
			//弹出购物车
			addShopCart(e) {
				console.log(e)
				this.$emit('addShopCart', )
			},
			showPriceOrScore(item1){
				return this.myCode ? Math.floor(item1.user_price * 100) + " 积分" : item1.user_price;
				
			},
			// 搜索商品
			searchProduct(){
				var itemTmp = {};
				var tabbarSearch = [];
				let clonedArray = JSON.parse(JSON.stringify(this.tabbarList));
				for (var i = 0; i < clonedArray.length; i++) {
					var item = clonedArray[i];
					var products = item.products;
					var productList = [];
					for (var j = 0; j < products.length; j++) {
						var product = products[j];
						if(product.product_name.indexOf(this.searchText) !== -1){
							productList.push(product);
						}
					}
					if(productList.length > 0){
						itemTmp = item;
						itemTmp.products = productList;
						tabbarSearch.push(itemTmp);
					}
				}
				if(tabbarSearch.length > 0){
					this.tabbar = tabbarSearch;
				} else{
					this.tabbar = this.tabbarList;
				}
			},
			// 获取商品信息 getMenus
			// getProductList(){
			// 	var _this = this;
			// 	uni.showLoading({ title: '加载中', mask: true });
			// 	request({
			// 		url: common.api_base_url+'/getMenus',
			// 		data:{
			// 			"brandId": _this.params.brandId,
			// 			"restaurantId": _this.params.restaurantId
			// 		},
			// 		header:{
			// 		},
			// 		method: 'POST',
			// 		success: res => {
			// 			if(res.data.success){
			// 				_this.tabbar = res.data.data;
			// 				_this.tabbarList = res.data.data;
			// 			} else{
			// 				uni.showToast({
			// 					title:res.data.message,
			// 					icon:"error"
			// 				})
			// 			}
			// 			uni.hideLoading();
			// 		},
			// 		fail: function(e) {
			// 			uni.hideLoading();
			// 			uni.showToast({
			// 				title:"唉哟，程序错误了["+JSON.stringify(e)+"]",
			// 				icon:"loading"
			// 			})
			// 		},
			// 	});
			// },
			// 点击左边的栏目切换
			async swichMenu(index) {
				if(this.arr.length == 0) {
					await this.getMenuItemTop();
				}
				if (index == this.current) return;
				this.scrollRightTop = this.oldScrollTop;
				this.$nextTick(function(){
					this.scrollRightTop = this.arr[index];
					this.current = index;
					this.leftMenuStatus(index);
				})
			},
			// 获取一个目标元素的高度
			getElRect(elClass, dataVal) {
				new Promise((resolve, reject) => {
					const query = uni.createSelectorQuery().in(this);
					query.select('.' + elClass).fields({
						size: true
					}, res => {
						// 如果节点尚未生成，res值为null，循环调用执行
						if (!res) {
							setTimeout(() => {
								this.getElRect(elClass);
							}, 10);
							return;
						}
						this[dataVal] = res.height;
						resolve();
					}).exec();
				})
			},
			// 观测元素相交状态
			async observer() {
				this.tabbar.map((val, index) => {
					let observer = uni.createIntersectionObserver(this);
					// 检测右边scroll-view的id为itemxx的元素与right-box的相交状态
					// 如果跟.right-box底部相交，就动态设置左边栏目的活动状态
					observer.relativeTo('.right-box', {
						top: 0
					}).observe('#item' + index, res => {
						if (res.intersectionRatio > 0) {
							let id = res.id.substring(4);
							this.leftMenuStatus(id);
						}
					})
				})
			},
			// 设置左边菜单的滚动状态
			async leftMenuStatus(index) {
				this.current = index;
				// 如果为0，意味着尚未初始化
				if (this.menuHeight == 0 || this.menuItemHeight == 0) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
					await this.getElRect('u-tab-item', 'menuItemHeight');
				}
				// 将菜单活动item垂直居中
				this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
			},
			// 获取右边菜单每个item到顶部的距离
			getMenuItemTop() {
				new Promise(resolve => {
					let selectorQuery = uni.createSelectorQuery();
					selectorQuery.selectAll('.class-item').boundingClientRect((rects) => {
						// 如果节点尚未生成，rects值为[](因为用selectAll，所以返回的是数组)，循环调用执行
						if(!rects.length) {
							setTimeout(() => {
								this.getMenuItemTop();
							}, 10);
							return ;
						}
						rects.forEach((rect) => {
							// 这里减去rects[0].top，是因为第一项顶部可能不是贴到导航栏(比如有个搜索框的情况)
							this.arr.push(rect.top - rects[0].top);
							resolve();
						})
					}).exec()
				})
			},
			// 右边菜单滚动
			async rightScroll(e) {
				this.oldScrollTop = e.detail.scrollTop;
				if(this.arr.length == 0) {
					await this.getMenuItemTop();
				}
				if(this.timer) return ;
				if(!this.menuHeight) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
				}
				setTimeout(() => { // 节流
					this.timer = null;
					// scrollHeight为右边菜单垂直中点位置
					let scrollHeight = e.detail.scrollTop + this.menuHeight / 2;
					for (let i = 0; i < this.arr.length; i++) {
						let height1 = this.arr[i];
						let height2 = this.arr[i + 1];
						// 如果不存在height2，意味着数据循环已经到了最后一个，设置左边菜单为最后一项即可
						if (!height2 || scrollHeight >= height1 && scrollHeight < height2) {
							this.leftMenuStatus(i);
							return ;
						}
					}
				}, 10)
			},
			// sku组件 开始-----------------------------------------------------------
		  SkuPopup(){
		  },
		   // 立即购买
			buyNow(selectShop){
			  console.log(selectShop)
			  selectShop.brandId = this.params.brandId;
			  selectShop.restaurantId = this.params.restaurantId;
			  selectShop.officialPrice = that.goodsInfo.officialPrice;
			  selectShop.special = this.params.special;
			  selectShop.channelId= this.goodsInfo.channelId;
			  selectShop.supplierCode= this.goodsInfo.supplierCode;
			  selectShop.productCode= this.goodsInfo._id;
			  if(this.myCode){
				  selectShop.price = Math.floor(selectShop.price * 100);
			  }
			   uni.navigateTo({
				url: `../order/settlement?selectShop=`+ encodeURIComponent(JSON.stringify(selectShop)),
			   });
			},
			toast(msg){
			  uni.showToast({
				title: msg,
				icon:"none"
			  });
			}
		}
	}
</script>
 
<style lang="scss" scoped>
	.u-wrap {
		height: calc(100vh);
		/* #ifdef H5 */
		height: calc(100vh - var(--window-top));
		/* #endif */
		display: flex;
		flex-direction: column;
	}
 
	.u-search-box {
		padding: 18rpx 30rpx;
	}
 
	.u-menu-wrap {
		flex: 1;
		display: flex;
		overflow: hidden;
	}
 
	.u-search-inner {
		background-color: rgb(234, 234, 234);
		border-radius: 100rpx;
		display: flex;
		align-items: center;
		padding: 10rpx 16rpx;
	}
 
	.u-search-text {
		font-size: 26rpx;
		color: #000;
		margin-left: 10rpx;
	}
 
	.u-tab-view {
		width: 200rpx;
		height: 100%;
	}
 
	.u-tab-item {
		height: 180rpx;
		background: #f6f6f6;
		box-sizing: border-box;
		font-size: 26rpx;
		color: #444;
		font-weight: 400;
		line-height: 1;
		text-align: center;
		padding-top: 6rpx;
		display: inline-flex;
		align-items: center;
		flex-direction:column;
		padding-bottom: 8rpx;
		width: 100%;
	}
 
	.u-tab-item-active {
		position: relative;
		color: #000;
		font-size: 30rpx;
		font-weight: 600;
		background: #fff;
	}
 
	.u-tab-item-active::before {
		content: "";
		position: absolute;
		border-left: 4px solid #e54d42;
		height: 180rpx;
		left: 0;
		top: 0px;
	}
 
	.u-tab-view {
		height: 100%;
	}
 
	.right-box {
		background-color: rgb(250, 250, 250);
	}
 
	.page-view {
		padding: 16rpx;
	}
 
	.class-item {
		margin-bottom: 30rpx;
		background-color: #fff;
		padding: 16rpx;
		border-radius: 8rpx;
	}
 
	.class-item:last-child {
		min-height: 100vh;
	}
 
	.item-title {
		font-size: 26rpx;
		color: red;
		font-weight: bold;
	}
 
	.item-menu-name {
		font-weight: normal;
		font-size: 24rpx;
		color: red;
	}
 
	.item-container {
		// display: flex;
		// flex-wrap: wrap;
	}
	.box-info{
		width: 70%;
		margin-left: 12rpx;
	}
 
	.thumb-box {
		width:100%;
		display: flex;
		align-items: center;
		justify-content: center;
		margin-top: 20rpx;
	}
	
	.item-menu-image1 {
		width: 80rpx;
		height: 80rpx;
	}
 
	.item-menu-image {
		width: 200rpx;
		height: 200rpx;
	}
	.mt{
		margin-top: 12rpx;
	}
</style>
